Requesting beacon LC data from epoch 209950 and on-wards fails

[kdeme]

Requests of beacon LC bootstrap, updates, finality update and optimistic update does not return recent data on http://testing.mainnet.beacon-api.nimbus.team

E.g.:

curl -X 'GET'   'http://testing.mainnet.beacon-api.nimbus.team/eth/v1/beacon/light_client/updates?start_period=821&count=1'   -H 'accept: application/json'

-> Period 821 and newer returns nothing

curl -X 'GET'   'http://testing.mainnet.beacon-api.nimbus.team/eth/v1/beacon/light_client/finality_update'   -H 'accept: application/json'

-> Returns one of slot 6718464

I've tested this on a local node and there it does work, which is why I'm creating this issue on the infra repository. Not sure if it is purely a infra / config issue though.

[kdeme]

The same requests on http://unstable.mainnet.beacon-api.nimbus.team does appear to work.